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研究了裂片134Cs内污染时在整体水平、骨骼和睾丸的转运、滞留,及其相应的吸收剂量估算。用整体测量装置探讨134Cs在整体的滞留,拟合的滞留方程为:R(t)=18.04e-9.3175t+45.13e-0.0423t在整体滞留过程中包括两个滞留半减期,其中快组分T1=0.07d,而慢组分T2=16.38d。并估算了其吸收剂量.根据134Cs在骨骼和睾丸中7周内的转运和滞留动态变化,拟合了134Cs在骨组织的滞留方程为:R(t)=0.0029e-0.121t,观察到在骨中的滞留半减期只有5.73d。而拟合的134Cs在睾丸中的滞留方程为:R(t)=0.0047e-0.133t,即在睾丸中的滞留半减期亦只有5.21d.可见随着134Cs内污染后时间的延长,其在骨骼和睾丸中的滞留均可迅速下降,而其吸收剂量呈缓慢增长。
The transport, retention of skeletal and testis, as well as the corresponding estimated absorbed dose, were studied at the level of 134Cs in the fragment. The whole measurement device was used to investigate the retention of 134Cs in whole body. The retention equation of fitting was: R (t) = 18.04e-9.3175t + 45.13e-0.0423t. Two retention half-lives were included in the whole retention process, Fast component T1 = 0.07d, while slow component T2 = 16.38d. And estimated the absorbed dose. According to the dynamic changes of 134Cs transport and retention in bone and testis within 7 weeks, the retention equation of 134Cs in bone was fitted as follows: R (t) = 0.0029e-0.121t, half retention in bone was observed The reduction is only 5.73d. However, the retention equation of fitted 134Cs in testis was: R (t) = 0.0047e-0.133t, that is, the retention half-life in testis was only 5.21 days. It can be seen with the 134Cs within the pollution after the extension of time, its retention in the bones and testis can be rapidly decreased, while the dose was slowly increased.